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<?php class Foo { public static function bar() { return array('a' => '1234567890'); } } var_dump(array_pop(Foo::bar()));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.28, 7.4.0 - 7.4.16, 8.0.0 - 8.0.3
Notice: Only variables should be passed by reference in /in/8fISj on line 8 string(10) "1234567890"
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.21
Strict Standards: Only variables should be passed by reference in /in/8fISj on line 8 string(10) "1234567890"
Output for 5.0.0 - 5.0.4, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
string(10) "1234567890"
Output for 5.0.5
<br /> <b>Fatal error</b>: Only variables can be passed by reference in <b>/in/8fISj</b> on line <b>8</b><br />
Process exited with code 255.
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/8fISj</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/8fISj</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/8fISj</b> on line <b>3</b><br />
Process exited with code 255.